Review: An essential part of a solid computer setup is the inclusion of backup power to allow you to turn your computer off safely in the event of a power outage or protect it from sudden spikes or drops in voltage that can easily render expensive computer equipment into scrap. With a maximum of 850 VA and 510 watts of power, the CyberPower CP850AVRLCD UPS can easily handle the auxiliary power demands of even a high-end computer system. This unit is more than just a standard UPS. In addition to the user-replaceable standby battery that can provide up to more than an hour's worth of power at full charge, it offers line conditioning surge suppression and noise filtering through an AVR function that maintain clean power and help steady voltage levels. It also has two main socket panels at the back of the unit. The left panel with five sockets has the battery-backup and surge protection features for your computer and network devices and the right one with four sockets only has surge protection, which is ideal for peripherals that are used occasionally, like printers, scanners and the like. Two more sets of jacks, one for RG-6 (coaxial) cables and the other for RJ-11s and RJ-45s (phone/Ethernet) have the surge protection feature added. A USB and serial interface allow the unit to connect to your computer for real-time monitoring using the supplied PowerPanel software, which in turn, can automatically save open work and shut down the computer safely when the battery power level drops below 5%. A bright blue LCD display in front of the unit shows a graphical display of how much power remains in the battery, load capacity, total voltage as well as different status indicators of the UPS. The LED lighting extends to the power button which has a bright ring around it. An environmentally-sound GreenPower technology makes this UPS an efficient energy saver through reduced energy use too. With all these great features, the only possible complaints one would have about the CyberPower CP850AVRLCD UPS are minor ones, such as the backlighting of the LED display set to turn off after 20 seconds instead of being always on or at least being adjustable, and that the PowerPanel software does not allow much in the way of adjustments of voltage sensitivity which is fixed at 90-140 volts.